diff --git a/Classes/PHPWord.php b/Classes/PHPWord.php
index 3879d7cd..51b37366 100755
--- a/Classes/PHPWord.php
+++ b/Classes/PHPWord.php
@@ -39,6 +39,9 @@ if (!defined('PHPWORD_BASE_PATH')) {
 class PHPWord
 {
 
+    const DEFAULT_FONT_NAME = 'Arial';
+    const DEFAULT_FONT_SIZE = 20;
+
     /**
      * Document properties
      *
@@ -74,8 +77,8 @@ class PHPWord
     public function __construct()
     {
         $this->_properties = new PHPWord_DocumentProperties();
-        $this->_defaultFontName = 'Arial';
-        $this->_defaultFontSize = 20;
+        $this->_defaultFontName = PHPWord::DEFAULT_FONT_NAME;
+        $this->_defaultFontSize = PHPWord::DEFAULT_FONT_SIZE;
     }
 
     /**
diff --git a/Classes/PHPWord/Style/Font.php b/Classes/PHPWord/Style/Font.php
index eafc10b7..293d7e35 100755
--- a/Classes/PHPWord/Style/Font.php
+++ b/Classes/PHPWord/Style/Font.php
@@ -94,8 +94,8 @@ class PHPWord_Style_Font
     public function __construct($type = 'text', $styleParagraph = null)
     {
         $this->_type = $type;
-        $this->_name = 'Arial';
-        $this->_size = 20;
+        $this->_name = PHPWord::DEFAULT_FONT_NAME;
+        $this->_size = PHPWord::DEFAULT_FONT_SIZE;
         $this->_bold = false;
         $this->_italic = false;
         $this->_superScript = false;
@@ -132,10 +132,10 @@ class PHPWord_Style_Font
         $this->$key = $value;
     }
 
-    public function setName($pValue = 'Arial')
+    public function setName($pValue = PHPWord::DEFAULT_FONT_NAME)
     {
         if ($pValue == '') {
-            $pValue = 'Arial';
+            $pValue = PHPWord::DEFAULT_FONT_NAME;
         }
         $this->_name = $pValue;
         return $this;
@@ -146,10 +146,10 @@ class PHPWord_Style_Font
         return $this->_size;
     }
 
-    public function setSize($pValue = 20)
+    public function setSize($pValue = PHPWord::DEFAULT_FONT_SIZE)
     {
         if ($pValue == '') {
-            $pValue = 20;
+            $pValue = PHPWord::DEFAULT_FONT_SIZE;
         }
         $this->_size = ($pValue * 2);
         return $this;
diff --git a/Classes/PHPWord/Writer/ODText/Content.php b/Classes/PHPWord/Writer/ODText/Content.php
index 69ba3bef..f8784e10 100755
--- a/Classes/PHPWord/Writer/ODText/Content.php
+++ b/Classes/PHPWord/Writer/ODText/Content.php
@@ -145,10 +145,10 @@ class PHPWord_Writer_ODText_Content extends PHPWord_Writer_ODText_WriterPart
                     }
                 }
             }
-            if (!in_array('Arial', $arrFonts)) {
+            if (!in_array(PHPWord::DEFAULT_FONT_NAME, $arrFonts)) {
                 $objWriter->startElement('style:font-face');
-                $objWriter->writeAttribute('style:name', 'Arial');
-                $objWriter->writeAttribute('svg:font-family', 'Arial');
+                $objWriter->writeAttribute('style:name', PHPWord::DEFAULT_FONT_NAME);
+                $objWriter->writeAttribute('svg:font-family', PHPWord::DEFAULT_FONT_NAME);
                 $objWriter->endElement();
             }
         }
diff --git a/Classes/PHPWord/Writer/ODText/Styles.php b/Classes/PHPWord/Writer/ODText/Styles.php
index 2ec591ae..7830db78 100755
--- a/Classes/PHPWord/Writer/ODText/Styles.php
+++ b/Classes/PHPWord/Writer/ODText/Styles.php
@@ -104,10 +104,10 @@ class PHPWord_Writer_ODText_Styles extends PHPWord_Writer_ODText_WriterPart
                 }
             }
         }
-        if (!in_array('Arial', $arrFonts)) {
+        if (!in_array(PHPWord::DEFAULT_FONT_NAME, $arrFonts)) {
             $objWriter->startElement('style:font-face');
-            $objWriter->writeAttribute('style:name', 'Arial');
-            $objWriter->writeAttribute('svg:font-family', 'Arial');
+            $objWriter->writeAttribute('style:name', PHPWord::DEFAULT_FONT_NAME);
+            $objWriter->writeAttribute('svg:font-family', PHPWord::DEFAULT_FONT_NAME);
             $objWriter->endElement();
         }
         $objWriter->endElement();
@@ -132,7 +132,7 @@ class PHPWord_Writer_ODText_Styles extends PHPWord_Writer_ODText_WriterPart
         // style:text-properties
         $objWriter->startElement('style:text-properties');
         $objWriter->writeAttribute('style:use-window-font-color', 'true');
-        $objWriter->writeAttribute('style:font-name', 'Arial');
+        $objWriter->writeAttribute('style:font-name', PHPWord::DEFAULT_FONT_NAME);
         $objWriter->writeAttribute('fo:font-size', '10pt');
         $objWriter->writeAttribute('fo:language', 'fr');
         $objWriter->writeAttribute('fo:country', 'FR');
diff --git a/Classes/PHPWord/Writer/RTF.php b/Classes/PHPWord/Writer/RTF.php
index 24f0157e..3f5b73ee 100755
--- a/Classes/PHPWord/Writer/RTF.php
+++ b/Classes/PHPWord/Writer/RTF.php
@@ -191,8 +191,8 @@ class PHPWord_Writer_RTF implements PHPWord_Writer_IWriter
         $pPHPWord = $this->_document;
 
         $arrFonts = array();
-        // Default font : Arial
-        $arrFonts[] = 'Arial';
+        // Default font : PHPWord::DEFAULT_FONT_NAME
+        $arrFonts[] = PHPWord::DEFAULT_FONT_NAME;
         // PHPWord object : $this->_document
 
         // Browse styles
diff --git a/Classes/PHPWord/Writer/Word2007/Base.php b/Classes/PHPWord/Writer/Word2007/Base.php
index 9ffbe59c..aedd4f50 100755
--- a/Classes/PHPWord/Writer/Word2007/Base.php
+++ b/Classes/PHPWord/Writer/Word2007/Base.php
@@ -334,7 +334,7 @@ class PHPWord_Writer_Word2007_Base extends PHPWord_Writer_Word2007_WriterPart
         $objWriter->startElement('w:rPr');
 
         // Font
-        if ($font != 'Arial') {
+        if ($font != PHPWord::DEFAULT_FONT_NAME) {
             $objWriter->startElement('w:rFonts');
             $objWriter->writeAttribute('w:ascii', $font);
             $objWriter->writeAttribute('w:hAnsi', $font);
@@ -350,7 +350,7 @@ class PHPWord_Writer_Word2007_Base extends PHPWord_Writer_Word2007_WriterPart
         }
 
         // Size
-        if ($size != 20) {
+        if ($size != PHPWord::DEFAULT_FONT_SIZE) {
             $objWriter->startElement('w:sz');
             $objWriter->writeAttribute('w:val', $size);
             $objWriter->endElement();